Paul francois de susini and eugene auguste  le



PAUL EEAN OIs DE SUSINI PAT NT- AND EUGENE A'UeUs'rE LEON LANcLo'Is, or

PARIS, FRANCE.

QUARTERNARY -ALLOY SPECIFICATION forming part of Letters Patent No.533,970, dated February 12, 189 5.

Application filed November 16, 1 8 94.

To all whom it may concern:

Be it known that we, PAUL FRANQOIS 'DE SUSINI and EUGENE AUGUSTE LEONLANG- great mechanical resistance to tension, shock and compression;also by its beautiful golden color and by its superior ino'xidizability.It moreover, is capable of being rolled with the I utmost facility,either cold'or hot, to all thick- It may be molded with ease to'greatthinness without presenting blowholes in sand, metal or other molds.Having great resistance and ahigh ductility it may be extended tocapillary diameters. It may be forged like iron with facility andmay,there-' fore be adapted to the'manufacture of most delicate andcomplicated objects. Its malleability, ductility and elastioityare thoseof metals possessing these qualities in the highest degree. It may bedrawn out in tubes of all diameters and thicknesses, either hot or cold,and may be stamped or embossed, for any mechanical or artistic purposelike gold, silver, copper, brass, &c. According to its degree of hammerhardening or annealing it may be elongated to from three to forty percent.

This new quarternary alloy possesses elasticity and resistance equal tothose of the best steels, together with ductility, malleabilityelongation equal to those of copper, brass, gold and, silver. Owing tothese properties it may with advantage take the place of all the metalsusually employed in most of the industrial applications beginning withsteel and iron, including copper, brass, bronze and ineluding also mostprecious metals and their alloys.

The new alloy is composed of copper, aluminium, tungsten and phosphorus.Thecomposition being always the same it may, nev- Serial No. 29,042. (Nospecimens.)

ertheless, vary according to the quantities of the several componentbodies, such variations depending upon the degree of resistance toelongation, ductility and malleability sought to be obtained to answerthe purposes for which it is-intended and which allows of the productionof metals according to a scale of numbers corresponding to the mostvarieduses'.

We have found that by varying the composition, quantitatively, thefollowing eight fundamental types may be obtained:

First, copper, ninety per cent.; aluminium, five per cent.; tungsten,four and one-half per cent.; phosphorus, one-half per cent.

Second, copper, eighty-nine per cent.; aluminium, six per cent.;tungsten, four and onehalf per cent.; phosph0rus,-one-half per cent.

Third, copper, eighty-eight per cent.; aluminium, seven per cent.;tungsten, four and one-half per cent.; phosphorus, one-half per cent.

Fourth, copper, eighty-seven per cent. aluminium, eight per cent.;tungsten, four and one-half per cent.; phosphorus one-half per cent.

Fifth, copper, eighty-six per cent.; aluminium, eight per cent.;tungsten, five and onehalf per cent.; phosphorus, one-half per cent.

Sixth, copper, eighty-five per cent.; aluminium, nine per cent.;tungsten, five and one-half per cent. phosphorus, one-half per cent.

Seventh, copper, eightythree per cent.; aluminium, ten per cent.tungsten, six and one-half per cent.; phosphorus, one-half per cent.

Eighth, copper, ninety-five per cent.; aluminium, three per cent.;tungsten, one and one-half per cent.; phosphorus, one-half per cent.

We proceed in the manner as follows: First, the first operation consistsin combining the tungsten with copper. employing pure metallic tungsten,which is very costly and difficult to obtain, we resort to the directreduction of tungstiferous ore by electrolytic copper, chemically pure,in the presence of carbon (charcoal) in a brasque crucible highlytreated in a crucible furnace. We then obtain a metallic mass containingfifty per cent. of copper and fifty per cent. of tungsten, alloyed withtraces of other metals which happened to be in the ore, which how ever,do not injure the composition. Second, the alloy thus obtained is put ina crucible with a quantity of copper necessary to produce with it one ofthe eight above mentioned compositions Third, when the compound ismelted at white-red heat and intimately mixed, we add the quantity ofaluminium indicated in the formula. Fourth, the aluminium meltsimmediately. The mass is then given another good stirring and finally toit is added onehalf of a per centum of phosphorus which refines it,frees it from all impurities which will gather on the surface of thebath, whence it may be removed and poured at cherry heat into sand orother suitable ingot molds. The unmolding may be effected immediatelyand the bars, plates, or other form of castings are ready at once tofurther manipulations of rolling, drawing, forging, the

The new quarternary alloy herein described, composed of copper,aluminium, tungsten and phosphorus, and having the characteristicsreferred to, is known as cyrnium.

W hat we claim is-- 1. The new quarternary alloy, composed of copper,aluminium, tungsten and phosphorus in substantially the proportions setforth.

2. The process herein described for prod ucing the quarternary alloyherein described, which process consists in first combining copper andtungsten by reducing tungstiferous ore by means of copper in thepresence of carbon at a high temperature, adding the desired quantity ofcopper to the cupro-tungsten mass obtained and melting the resultantcompound, adding aluminium when the mass is perfectly melted, andfinally adding phosphorus as set forth.

In testimony whereof we have signed this specification in the presenceof two subscribing witnesses.

PAUL FRANQOIS DE SUSINI. EUGENE AUGUSTE LEON LANGLOIS.

Witnesses:

CLYDE SHROPSHIRE, H. ACORT.

